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21738846a1
The test does not necessarily trigger the crash, depending on memcmp behavior. A crash was observed in __memcmp_ia32 on i686 builds. Reviewed-by: Paul Eggert <eggert@cs.ucla.edu>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* Attempt to trigger fault with very short TZ variable (bug 31931).
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Copyright (C) 2024 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <support/next_to_fault.h>
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#include <stdlib.h>
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#include <time.h>
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#include <string.h>
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static char tz[] = "TZ=/";
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static int
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do_test (void)
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{
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struct support_next_to_fault ntf
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= support_next_to_fault_allocate (sizeof (tz));
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memcpy (ntf.buffer, tz, sizeof (tz));
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putenv (ntf.buffer);
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tzset ();
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/* Avoid dangling pointer in environ. */
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putenv (tz);
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support_next_to_fault_free (&ntf);
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return 0;
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}
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#include <support/test-driver.c>
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